Piano Forum

I'll give you the benefit of the doubt here since you say you're 11.

First of all, a prodigy is someone who achieves an adult level of expertise by the time they are 10 years old. So, you're not a prodigy.

That doesn't mean you can't be reasonably talented. However, there is no way anyone here can assess that if all you say is that you "play Chopin and Alkan". What pieces, and to what level? That makes all the difference. Being able to play a Chopin waltz at that age is quite normal. Post some recordings here (no need for video if that's not your thing), so that people can get a better idea.

If you are indeed playing Chopin and Alkan as you claim, why on earth are you still "grade 2"? You know you're allowed to skip grades, right?

The advice you need to learn La Campanella will hugely depend on your current skill level and experience. Take the analogy of a reasonably hard school subject such as calculus. The advice I've given people regarding calculus has varied from "just skim through the textbook" to "take a course" or even "spend several months fixing your geometry and algebra, and then trigonometry". Same thing with the piano. It really depends on your current level.